1
|
Duranova H, Valkova V, Olexikova L, Radochova B, Balazi A, Chrenek P, Vasicek J. Rabbit Endothelial Progenitor Cells Derived From Peripheral Blood and Bone Marrow: An Ultrastructural Comparative Study. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-11. [PMID: 35297367 DOI: 10.1017/s143192762200037x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The present study was designed to compare the ultrastructure of early endothelial progenitor cells (EPCs) derived from rabbit peripheral blood (PB-EPCs) and bone marrow (BM-EPCs). After the cells had been isolated and cultivated up to passage 3, microphotographs obtained from transmission electron microscope were evaluated from qualitative and quantitative (unbiased stereological approaches) points of view. Our results revealed that both cell populations displayed almost identical ultrastructural characteristics represented by abundant cellular organelles dispersed in the cytoplasm. Moreover, the presence of very occasionally occurring mature endothelial-specific Weibel–Palade bodies (WPBs) confirmed their endothelial lineage origin. The more advanced stage of their differentiation was also demonstrated by the relatively low nucleus/cytoplasm (N/C) ratios (0.41 ± 0.19 in PB-EPCs; 0.37 ± 0.25 in BM-EPCs). Between PB-EPCs and BM-EPCs, no differences in proportions of cells occupied by nucleus (28.13 ± 8.97 versus 25.10 ± 11.48%), mitochondria (3.71 ± 1.33 versus 4.23 ± 1.00%), and lipid droplets (0.65 ± 1.01 versus 0.36 ± 0.40%), as well as in estimations of the organelles surface densities were found. The data provide the first quantitative evaluation of the organelles of interest in PB-EPCs and BM-EPCs, and they can serve as a research framework for understanding cellular function.
Collapse
Affiliation(s)
- Hana Duranova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra94976, Slovak Republic
| | - Veronika Valkova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra94976, Slovak Republic
| | - Lucia Olexikova
- NPPC, Research Institute for Animal Production Nitra, Institute of Farm Animal Genetics and Reproduction, Hlohovecká 2, Lužianky951 41, Slovak Republic
| | - Barbora Radochova
- Laboratory of Biomathematics, Institute of Physiology, The Czech Academy of Sciences, Vídeňská 1083, Prague 4CZ-14220, Czech Republic
| | - Andrej Balazi
- NPPC, Research Institute for Animal Production Nitra, Institute of Farm Animal Genetics and Reproduction, Hlohovecká 2, Lužianky951 41, Slovak Republic
| | - Peter Chrenek
- NPPC, Research Institute for Animal Production Nitra, Institute of Farm Animal Genetics and Reproduction, Hlohovecká 2, Lužianky951 41, Slovak Republic
- Faculty of Biotechnology and Food Science, Institute of Biotechnology, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra94976, Slovak Republic
| | - Jaromir Vasicek
- NPPC, Research Institute for Animal Production Nitra, Institute of Farm Animal Genetics and Reproduction, Hlohovecká 2, Lužianky951 41, Slovak Republic
- Faculty of Biotechnology and Food Science, Institute of Biotechnology, Slovak University of Agriculture, Tr. A. Hlinku 2, Nitra94976, Slovak Republic
| |
Collapse
|
2
|
Granata C, Caruana NJ, Botella J, Jamnick NA, Huynh K, Kuang J, Janssen HA, Reljic B, Mellett NA, Laskowski A, Stait TL, Frazier AE, Coughlan MT, Meikle PJ, Thorburn DR, Stroud DA, Bishop DJ. High-intensity training induces non-stoichiometric changes in the mitochondrial proteome of human skeletal muscle without reorganisation of respiratory chain content. Nat Commun 2021; 12:7056. [PMID: 34862379 PMCID: PMC8642543 DOI: 10.1038/s41467-021-27153-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022] Open
Abstract
Mitochondrial defects are implicated in multiple diseases and aging. Exercise training is an accessible, inexpensive therapeutic intervention that can improve mitochondrial bioenergetics and quality of life. By combining multiple omics techniques with biochemical and in silico normalisation, we removed the bias arising from the training-induced increase in mitochondrial content to unearth an intricate and previously undemonstrated network of differentially prioritised mitochondrial adaptations. We show that changes in hundreds of transcripts, proteins, and lipids are not stoichiometrically linked to the overall increase in mitochondrial content. Our findings suggest enhancing electron flow to oxidative phosphorylation (OXPHOS) is more important to improve ATP generation than increasing the abundance of the OXPHOS machinery, and do not support the hypothesis that training-induced supercomplex formation enhances mitochondrial bioenergetics. Our study provides an analytical approach allowing unbiased and in-depth investigations of training-induced mitochondrial adaptations, challenging our current understanding, and calling for careful reinterpretation of previous findings.
Collapse
Affiliation(s)
- Cesare Granata
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia.
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research, Heinrich Heine University, 40225, Düsseldorf, Germany.
| | - Nikeisha J Caruana
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Javier Botella
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Nicholas A Jamnick
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
- Metabolic Research Unit, School of Medicine and Institute for Mental and Physical Health and Clinical Translation (iMPACT), Deakin University, Geelong, VIC, Australia
| | - Kevin Huynh
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Jujiao Kuang
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Hans A Janssen
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Boris Reljic
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, 3800, Melbourne, Australia
| | | | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Tegan L Stait
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
| | - Ann E Frazier
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Melinda T Coughlan
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Peter J Meikle
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - David R Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, VIC, 3052, Australia
- Victorian Clinical Genetics Services, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
| | - David A Stroud
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia.
| | - David J Bishop
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia.
| |
Collapse
|
4
|
Steinach M, Lichti J, Maggioni MA, Fähling M. A fluid shift for endurance exercise-Why hydration matters. Acta Physiol (Oxf) 2019; 227:e13347. [PMID: 31329350 DOI: 10.1111/apha.13347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Mathias Steinach
- Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Charité‐Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | - Julia Lichti
- Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Charité‐Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- Institute of Vegetative Physiology, Charité‐Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | - Martina Anna Maggioni
- Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Charité‐Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- Department of Biomedical Sciences for Health Università degli Studi di Milano Milan Italy
| | - Michael Fähling
- Institute of Vegetative Physiology, Charité‐Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| |
Collapse
|